High precision loop resistance tester (contact) resistance measurement is an important part of electrical testing. According to the requirements of the "Power Equipment Handover and Preventive Test Procedures", the measurement of the conductive circuit resistance of various switchgear should use a test current of not less than 100A.The intelligent loop resistance tester is suitable for high-precision measurement of high-voltage switch contact resistance (loop resistance), and is also applicable to other occasions requiring high current and micro resistance measurement. Executive standard: DL/T845.4-2004. This product is widely used in electrical manufacturing departments, power operation departments, scientific research institutions, and universities.
l This instrument has the characteristics of small size, light weight, strong anti-interference ability, high precision, convenient operation, and complete protection functions.
l It uses a precision instrumentation operational amplifier and a high-precision quadruple integral A/D converter, combined with a high-performance 16-bit microcontroller. During measurement, the system automatically switches the amplification factor according to the signal size, ensuring the test accuracy of this product.
l Human-machine dialogue full keyboard operation mode, intelligent working process throughout.
l 320×240 LCD display, high-speed thermal printer.
l This product also designs a real-time calendar clock, providing time basis for printing and saving data.
l Data storage and historical data browsing function, can store 200 sets of data, and has power-off protection function.
l Ultra-wide range, maximum measurement range up to 0-4mΩ.
